package com.itheima.health.dao;

import org.apache.ibatis.annotations.Param;

/**
 * @author Guan
 * @version 1.0
 * @date 2020/11/21 16:45
 * @purpose :定时清理sql类
 */
public interface Timer_Delete_SDF {

    /**
     * 删除指定日期前的数据
     * @param sdf
     * @return
     */
    void timerDelete (@Param("sdf") String sdf);
}
